baber/WOPTO huggingface dataset:
Patent GB-754853-A (GB)
Title: Improvements in or relating to frequency changing mixing circuits
IPC: H04B15/06
Filed: 1954-03-15
Abstract: 754,853. Superheterodyne circuits. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. March 15, 1954 [March 14, 1953], No. 7393/54. Class 40 (6). In a self-oscillating frequency-changer in which the signal input circuit 1, Fig. 1, is connected to a tap on a back-coupling coil 7 which forms a balanced bridge network when taken in conjunction with the valve input capacity and a balancing condenser 10, the valve damping on the input circuit 1 is reduced by tightly coupling to each other the halves of the coil 7. The coil may comprise a bifilar winding 7, Fig. 2, an iron-dust core 13 being used to increase the coupling still further and also the coupling to the tuned anode circuit 5. A tight coupling between the parts of the coil may similarly be used. when the oscillator is of the tuned grid type. As an alternative, the tap may be obtained by using a pair of like condensers in series across the coil, the input being taken. to their common point.
Patent GB-197126-A (GB)
Title: Improvements relating to trousers presses
IPC: A47G25/72
Filed: 1922-03-14
Abstract: 197,126. Timings, S. March 14, 1922. Trouser presses and stretchers; garment hangers. - In trouser presses of the kind wherein pressure is applied by rotary camlike members on one board engaging brackets on the other board, the upper board 4 is of less width than the lower board 1, and the cam-members 7 only overhang the board 4 when in operative position, so that the latter board may be removed without fouling the brackets 2 on the board 1. The upper board 4 comprises a short portion adapted to engage the ends of the trouser legs and having dowel pins 43 engaging holes in the board 1, and a main portion to accommodate the remainder of the trousers. The inturned parts 3 of the brackets 2 are inclined to correspond with the inclined cam surface 10. In a modification, the press is double, the hook-like brackets extending on each side of the base board to engage cam members on press-boards on each side of the base board. In another modification, Fig. 8, adapted for suspending two pairs of trousers, a bar 12 has a hanging hook 13 and double hook-like brackets 15 at each end to engage the cam-members 19 of two press boards 18. Each board 18 has hooks 42 to engage over the brackets 15.
Patent GB-749515-A (GB)
Title: Improvements in or relating to the production of dextran
Inventor: JAMES ARTHUR EDWIN
IPC: C12P19/08
Filed: 1953-03-19
Abstract: In producing dextran having branching of 1 : 6 linked poly-glucose chains at positions 2, 3 and/or 4, a suitable organism, e.g. Betabacterium vermiforme, Betacoccus arabinosaceous or a specified strain of Leuconostoc mesenteroides, is grown in a culture medium containing sucrose and dextran.  The latter may have a low molecular weight, may contain a substantial proportion of molecules of even size, may have an intrinsic viscosity ranging from 0.43 to 0.57 and may have been obtained, e.g. by acetone fractionation, from dextran produced in an earlier run.  The organism is preferably one which produces dextran in which not more than about 95 per cent of the linkages between glucose units are 1 : 6 linkages.  The culture medium may also contain microcosmic salt, potassium dihydrogen phosphate, magnesium sulphate, acqueous yeast extract corn steep liquor, tomato juice, molasses, p-amino-benzoic acid and manganese.ALSO:In preparing a blood plasma substitute, sodium chloride and dextran, produced by growing Betacoccus arabinosaceous in an aqueous culture medium containing sucrose and dextran (see Group V) and having, at 6 per cent concentration in water at 37 DEG C., a kinematic viscosity relative to water of 5,7, are dissolved in water to give a 6 per cent w/v concentration of dextran and a 0,9 per cent concentration of salt.
Patent GB-826123-A (GB)
Title: Improvements in or relating to supporting arms for sun blinds or awnings
IPC: E04F10/06
Filed: 1955-03-16
Abstract: 826,123. Sun blinds. COOPE, J. T. L., and COOPE, J. W. March 15, 1956 [March 16, 1955], No. 7658/55. Class 20(3) A lazytong supporting arm for a sun blind comprises links 2, 8 and 9 (not shown), short additional links 10, 11, 14 pivoted to the links 8, 9 and a lath carrier arm 7 pivoted to the links 8, 11 and in slotted connection with the link 14 which is pivoted with the link 10 and engaged by a L-shaped catch 12 projecting therefrom, the arrangement being such that the lath 19 initially has substantially straight line motion to clear the overhanging structure 20. The inward swing of the lath carrier arm 7 is limited by an L-shaped catch 18 attached to the link 14.
Patent GB-1433462-A (GB)
Title: Apparatus for transferring a bundle of control or shut-down rods from one location to another in a nuclear reactor
IPC: G21C7/14
Filed: 1974-02-20
Abstract: 1433462 Grippers FRIED KRUPP GmbH 20 Feb 1974 [21 Feb 1973] 7740/74 Heading B8H [Also in Divisions G4-G6] An apparatus for the introduction of control or shut-down rods 3 into narrow cavities 4 with a raisable and lowerable gripper 2 from which the bodies are suspended, includes means for the lateral supporting of the lower ends of the rods 3 when these are withdrawn from the cavities 4, including at least one guide member 6 fitted on the lower end of a holder vertically slidably guided on a carrier body of the gripper 2 in such a way that it can be brought into or out of engagement with the lower ends of the bodies. As shown in Figs. 1 and 2, the gripper 2 is seated on the lower end of an inner tube 1 which slides vertically with the aid of rollers in an outer guide tube (not shown) and a bundle of control rods 3 (only two shown) has just been extracted from the narrow boxes 4 of a fuel element 5 within a reactor core by raising of the tube 1. Lateral support fol the lower ends of the control rods 3 is provided by a flap 6 of comb form (Fig. 4) in combination with a guide rod 7 which can be slid vertically with the aid of two pairs of  grooved rollers 8 mounted on the tube 1. The guide rod 7 has a slender prolongation 9 carrying a cross-member 11 and extending through a bore of a plate 12 to which is connected the lower end of a piston-rod 13 of a pneumatic lifting mechanism 14 suspended by a bracket 15 from the tube 1. A helical compression spring 20 which surrounds the prolongation 9 seeks to push the plate 12 away from the cross-member 11. In the Fig. 1 position, the guide rod 7 is in its uppermost position with the flap 6, pivoted on the underside of the cross-member 11, lying higher than the lower edge of the gripper 2 and hence no hindrance when the gripper was lowered to grasp the heads of the rods 3. In order to lift the rods 3 still further, the piston 18 of the lifting mechanism 14 is lowered by a distance h until the guide rod 7 rests with its collar 24 upon a stop 25. Upon lowering the piston 18 further by a distance a, the crossmember 11 retains its Fig. 2 position and the plate 12 is lowered against the action of the spring 20. A cam 23 with an inclined lower face extending down from the plate 12 displaces a roller 22 on the flap 6 so as to swing the latter into a horizontal position in which the rods 3 are embraced between the teeth 26 of the flap 6. In the constructive development of Figs. 5 to 8 (not shown) an apparatus is described in which three flaps are swung consecutively into positions displaced 45 degrees from one another so as to engage all the control rods on at least three sides.
Patent GB-1184011-A (GB)
Title: Tape Reeling Search System
Inventor: ANDREWS DALLAS ROY
IPC: G11B15/02
Filed: 1968-02-16
Abstract: 1,184,011. Feeding record tapes. R.C.A. CORPORATION. 16 Feb., 1968 [31 March, 1967], No. 7746/68. Heading G5R. A tape player using an endless spirally wound loop of tape incapable of reverse motion includes means for maintaining fast forward running of the tape only in the presence of recorded signals on the tape. As shown, brief operation of a push-button 52 actuates a solenoid 16 to initiate fast forward drive of tape 11 in a cartridge 10 and connects a power supply 48 to an amplifier 32 which holds a relay 34 operated, maintaining the fast forward drive and disconnecting the audio output amplifier 24, as long as the playback head 18 picks up a prerecorded message signal from the tape 11. The apparatus reverts to normal drive and playback at a break in the prerecorded message or when a " listen " button 54 is pressed.
Patent GB-730502-A (GB)
Title: Improvements in auxiliary starting carburetters
IPC: F02M1/04
Filed: 1953-03-20
Abstract: 730,502. Spray carburetters. SOLEX. March 20, 1953 [April 4, 1952], No. 7796/53. Class 7(3). A bimetallic strip 22 is located in the mixture conduit of an auxiliary starting carburetter so as to modify in accordance with the temperature the richness of the mixture supplied. It rests on a pin 23 as shown. The auxiliary carburetter control valve 7 is provided with at least one hole 17 and is operated either by the driver or automatically. Devices for heating the bimetallic strip (such for instance as electric resistance, circulation of hot air and so on) are referred to. The Strip 22 may be located at any other part of the conduit 12 or in conduit 19 or in any other portion of the circuit through which the fuel air mixture supplied by the auxiliary carburetter circulates. The invention is applicable to any type of starting carburetter. Specification 730,545 is referred to.
Patent GB-564718-A (GB)
Title: Improvements in and relating to spinning buckets
IPC: D01D7/02
Filed: 1943-05-18
Abstract: 564,718. Spinning buckets. AMERICAN VISCOSE CORPORATION. May 18, 1943, No. 7881. Convention date, Nov. 19, 1942. [Classes 120 (ii) and 120 (iii)] A spinning bucket 2 is provided with one or more openings 8, extending through the bottom thereof, for the reception of coke-ejecting means 11, 15 and a coke-supporting element, e.g. a disc 6, situated within the bucket over the openings and displaceable axially by the cokeejecting means. The coke-ejecting pins 11 are preferably carried by a cup-like shell 9 in which the bucket fits, an opening 10 receiving the bucket hub 3. To facilitate registering the pins 11 with the openings 8, the bottom of the bucket is formed with arcuate grooves with sloping bottoms 13 leading to the openings. In a modification, only one opening through the bottom of the bucket may be provided situated axially of the hub 3. In a further modification, Fig. 4, the coke-ejecting pins 15 are carried on a block 14 through which slides a spring-pressed piston 17 carrying a bucketcentering pin 22. Pins 21 sliding in slots 20 limit the vertical movement of the piston 17. The strength of the spring 18 may be such that when the filled bucket is placed upon the device, its weight will cause the bucket to fall, thus ejecting the coke C.
Patent GB-683829-A (GB)
Title: A new or improved apparatus for use in connection with articles which are required to be treated by immersion
Inventor: MERCER FREDERICK GEORGE
IPC: A43D95/12
Filed: 1950-03-30
Abstract: <PICT:0683829/III/1> <PICT:0683829/III/2> Apparatus for treating articles, such as leather soles, by immersion, e.g. in a volatile liquid treatment for softening an adhesive coating or for tempering prior to cement attachment of the sole, comprises a trough 15, Fig. 5, in which the level of liquid is maintained constant from a reservior under a table 11, Fig. 5, and having a cover 1 for the top thereof displaceable by p  the operator, preferably through a mechanical, e.g. a treadle mechanism, or electrical agency.  The trough 15 and reservoir 19 may be embedded in a mass of concrete 18. A batch of lasted shoe uppers on their lasts may be placed on the grid 251 of a warming rack to heat the uppers preparatory to cement attachment of a number of soles which are stacked on a flat portion 111 of the table 11, from which they are removed singly and immersed by hand, the cover 19 being raised between immersions.  The treated soles are laid on a wire grid on the table 11, excess liquid draining back to the trough 15.  Specifications 680,524, 680,555 and 680,556, [all in Group VII], are referred to.
Patent GB-494337-A (GB)
Title: Improvements in and relating to collapsible tubes
IPC: B65D35/02
Filed: 1937-03-18
Abstract: 494,337. Collapsable tubes. WEBB,L. March 18, 1937, No. 8004. [Class 66] The body portions 31, Fig. 1, of collapsable tubes are formed from two or more helically wound tubular sleeves superposed one on another, the overlapping convolutions forming the sleeves being sealed together by means of heat or adhesive. The sleeves 21, 22, are composed of paper, metal foil, or paper coated with metal foil, and the innermost and outermost ones 20, 23, of a cellulose derivative. The sleeves are preferably rendered waterresisting, for instance by means of a coating of chlorinated rubber. One or more of the sleeves are extended beyond the others, this end of the tube being closed and sealed by a first fold formed in the extended sleeve or sleeves and by a second one made in all the sleeves, sealing means such as heat, cement, or a clip being applied if desired. The bodies are attached to neck portions made either of non-corrosive metal or thermoplastic moulded material, any usual mode of attachment being employed in the former instance. When moulded necks 29 are provided they may be attached to the bodies by a metal clamping band such as 32, Fig. 5, or by means of an inset metal collar 36, Figs. 6, 8, suitably engaged with the upper edge of the body.
Patent GB-371550-A (GB)
Title: Process for purifying physiologically active substances
IPC: A61K35/12
Filed: 1931-03-16
Abstract: Crude extracts containing cardiac substances are purified by precipitating the active substances with heavy metal compounds such as copper, silver, lead or mercury salts, with or without the addition of other salts such as sodium acetate or magnesium salts, and subsequently removing the precipitant.  Examples of the invention are as follows: (1) the mother liquor, remaining after the precipitation of blood-sugar level reducing substances with ammonium sulphate from pancreas extract, is mixed with acetone; 500 c.c. of the aqueous layer which forms is diluted to 2 litres, 100 gms. of sodium acetate and 160 c.c. of 40 per cent sodium bisulphite solution added and the mixture boiled; 10 per cent copper sulphate is then added until no more precipitate forms; the liquid is boiled for three minutes, filtered hot, the precipitate suspended in water, slightly acidified and the copper precipitated with hydrogen sulphide; the filtered solution is evaporated in vacuo and the residue dissolved in water, neutralized and standardized: (2) organic phosphorus-containing substances are removed from the product of (1) by precipitation with magnesia mixture, and the filtrate is treated with excess magnesia mixture and ammoniacal silver nitrate; the precipitate is separated, washed with ammonia, suspended in water, and the silver precipitated with hydrochloric acid; the precipitate is filtered off and the filtrate evaporated in vacuo and redissolved: (3) a mother liquor as in (1) is diluted, precipitated with 10 per cent copper sulphate solution in the presence of sodium acetate and sodium bisulphite, and worked up as in (1): (4) the product of the example of Specification 279,445, [Class 81 (i), Disinfecting &c.], is precipitated with 80 per cent copper sulphate solution in the presence of sodium acetate and sodium bisulphite and further worked up as in (1): (5) the product of example (1) of Specification 335,202, [Class 81 (i), Disinfecting &c.], is treated as in (2) : (6) the product of the process of Specification 359,523 is treated as in (1) : (7) the product of example (1) is treated with solid cuprous chloride while boiling and further worked up as in (1) : (8) the product of the example of Specification 279,445 is rendered slightly ammoniacal and precipitated with 25 per cent lead acetate solution, filtered, and the lead removed from the precipitate, ground in water, by treatment with 20 per cent sulphuric acid; traces of lead are removed from the filtrate with hydrogen sulphide: (9) the product of example (1) of Specification 335,202 is treated with mercuric chloride solution and the mercury removed from the precipitate with hydrogen sulphide.  Specifications 306,606 and 306,608, [both in Class 81 (i), Disinfecting &c.], also are referred to.
Patent GB-1379706-A (GB)
Title: Power-operated tool
IPC: B23B31/20
Filed: 1973-02-19
Abstract: 1379706 Chucks; portable drills BLACK & DECKER MFG CO 19 Feb 1973 8097/73 Headings B3B and B3C A portable power operated tool comprises a housing 13, a motor 15, e.g. a pneumatic rotary vane motor, and control means 14, 29 therefor an operating member 33 for controlling the control means, a collet 59 drivable by the motor 15 and biased by springs 63 to grip a tool bit 66, the operating member 33 having a normal position in which the control means 29, 14 is not actuated and being movable in a first direction to actuate the control means and being movable in a second and different direction to actuate means counteracting the biasing springs 63 to release the grip of the collet 59. The operating member, e.g. a lever 33, includes a projection 37  for operating a throttle valve 29 when moved in the first direction, and a cam 85 for moving a pin 81 and lever 83 when moved in the second direction.
Patent GB-680529-A (GB)
Title: Improvements in and relating to ladies' stockings and to a machine for their manufacture
Inventor: MYATT ERIC DUNN
IPC: D04B9/54
Filed: 1949-03-25
Abstract: 680,529. Knitting. TOWL & CURSLEY (1931), Ltd. March 27, 1950. [March 25, 1949] No. 8171/49. Class 74 (ii). The welt of a circularly knit seamless stocking consists of tuck stitch fabric composed of repeated identical sequences of four courses, each sequence having tuck stitches disposed in even wales, and odd wales of all courses being of normal stitches. The stocking may be produced on a Scott and Williams "Model K" machine having a crank 17 fitted to the quadrant, the crank raising or lowering a combined stitch and clearing cam 2 through connections 15, 16, 20, 22, 23, to clearing or tucking position. The period of tuck stitch knitting is determined by a cam 12 on tne pattern drum 8, the cam operating on a feeler 9 pivoted to the machine frame at 10 to position the pivot 14 of the connection 15 so that its arm 15b engages the connection 20 during periods of oscillation of the crank 17. The plain wales are produced by a cam 5 engaging jacks to raise alternate needles to clearing height. The cam 2 may be used with long latch needles to produce mock-fashioning marks. Mechanism (not shown) may adjust loop lengths.
Patent GB-478866-A (GB)
Title: Improvements in endless track chains and belts for vehicles
IPC: B62D55/275
Filed: 1937-03-22
Abstract: 478,866. Endless tracks for vehicles. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. March 22, 1937, No. 8381. Convention date, June 27, 1936. [Class 79 (i)] The metal links 1 of an endless track have apertures or recesses therein, some of these apertures 5 being left open while others are filled with rubber or like tread blocks 6 projecting from the surface of the links, so that on a hard road surface there is a greater load per unit of area than on soft ground in which the blocks sink. Preferably the rubber blocks cover only about 1/20 of the total surface of the tracks, and the resultant load per unit of area is approximately that of a pneumatic-tyred wheel on a vehicle carrying the same load. The Specification as open to inspection under Sect. 91 states that the invention may be employed for flexible endless track bands. This subject-matter does not appear in the Specification as accepted.
Patent GB-909213-A (GB)
Title: Improvements in and relating to non-woven fabrics
Inventor: FAIRCLOUGH JOHN HOLDEN
IPC: D04H1/58
Filed: 1960-03-10
Abstract: 909,213. Agglutinated fibrous materials; felt. LANTOR Ltd. May 10, 1961 [March 10, 1960], No. 8415/60. Classes 42 (2) and 140. A method of manufacturing a non-woven fabric comprises the steps of bonding together in the form of a web a mixture of substantially heat-stable fibres and at least 10% by weight of thermoplastic fibres which will shrink at least 10% in length on heating and then heating the web of bonded fibres to a temperature at which the thermoplastic fibres shrink but below the temperature at which they fuse. Bonding may be effected by needle punching or by means of a polymeric bonding agent. The web may be composed of up to 90% thermoplastic fibres, preferably acrylic or vinyl, of the type referred to above; the balance of fibres may be any natural or synthetic fibres, e.g. cotton, wool, rayon, nylon, or " Acrilan " (Registered Trade Mark) fibres. The web may be heated in air, water or a liquid which does not dissolve or chemically attack the fibres. Thermoplastic fibres which will shrink 25% or more in length on heating may be used. Bonding agents used must have a higher fusing temperature than the shrinking temperature of the fibres. Specified bonding agents are polyacrylate resin, copolymers of acrylonitrile and butadiene, and nitrile synthetic rubber latex. Specification 659,688 is referred to.
Patent GB-423637-A (GB)
Title: Improvements in or relating to the breaking-down of crude rubber
IPC: B29B7/82
Filed: 1934-03-17
Abstract: 423,637. Masticating rubber. WOODCOCK, W. J., and JOHN BULL RUBBER CO., Ltd., Evington Valley Mills, Leicester. March 17, 1934, No. 8444. [Class 70] [See also Group II] Means for maintaining a constant predetermined temperature of rubber during mastication in a roller mill comprises a metal plough 5 adapted to cut through the rubber on the roll and means associated with the plough for controlling the supply of cooling water to the mill. As shown, in a cavity in the plough 5 is a bulb 8 containing alcohol. The bulb is connected by a tube 9 to a diaphragm chamber 10 on the upper surface of which rests a lever arm 12. When the alcohol expands the lever 12 is pressed upwards and acts on another lever 20 at the end of which is a pad adapted to close more or less an opening 23 in an air pipe, thereby varying the air pressure in a pipe 31 leading to a water-controlling valve 35 in the water pipe supplying water to the interior of the rolls 3, 4 and to a spraying device 39. The air pipe 31 also leads to a valve 41 controlling the supply of air to the spraying device 39.